Project description
Capturing CP violations in rare decays
Flavour-changing neutral currents are hypothetical interactions that change the flavour of a fermion without altering its electric charge. These transitions are forbidden in the Standard Model and can only occur via loop diagrams. A prominent example of such rare transitions involves the decay of a b quark into an s quark and two leptons. Funded by the Marie Sklodowska-Curie Actions programme, the ASymmetryNamedCP project, leveraging experimental measurements of observables related to B meson mixing and CP violations, aims to tag for the first time the flavour of the B meson that decays into two muons. In addition, a new method of calibrating the decay times at the Large Hadron Collider beauty experiment will be developed and tested.
Objective
In the recent years, measurements of rare B decays involving b->sll transitions have shown discrepancies compared to predictions of the Standard Model of Particle Physics. These transitions are flavor-changing neutral currents (FCNC): they are forbidden at tree level in the SM and therefore sensitive to contributions of new particles in loops. Global fits to these data suggest new physics contributions that can be explained new physics models involving a tree-level exchange of a lepto-quark or a flavor changing $Z^\prime$ boson. In the decay of neutral Bs meson to a CP eigenstate, the interference between the decay and the B-meson mixing leads to additional observables that are not accessible to flavor specific final states. In the SM, all CP-violating effects are expected to be very small, therefore these observables can make powerful contributions to our understanding of the B-anomalies as they can differ significantly depending on the properties of new physics contributions. This project will measureme the CP violating observables arising in the interference of the decay and mixing of Bs mesons using a tagged analysis for the first time in phimumu decays using full LHCb data set which corresponds to 9 inverse-fb. Additionally a new method to calibrate decay time resolution at LHCb will be developed and tested on run 1-2 data collected at LHCb and will be ready to use for the run 3 which is expected to start at the end of 2021.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2020
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
8006 Zurich
Switzerland
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.